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介绍大规模可编程逻辑器件PLD及EDA技术在数字系统设计这一较新方向的一些尝试性应用。提出一种采用Lattice公司PLD芯片 ,并利用窗函数法实现FIR数字滤波器的设计方法。并设计了一个十阶FIR低通滤波器 ,通过软件程序进行了仿真验证和硬件实测 ,结果表明电路工作正确可靠 ,能达到设计要求。
This paper introduces some tentative applications of PLD and EDA technology of large-scale programmable logic devices in this relatively new direction of digital system design. A design method of FIR digital filter using the Lattice PLD chip and window function method is proposed. And a ten-order FIR low-pass filter is designed. The simulation and hardware measurement are carried out through the software program. The result shows that the circuit works correctly and reliably and meets the design requirements.